* Remove several dependencies (heyupdate/emoji, clue/buzz-react, ramsey/uuid) and fix the versions of some of them (react/zmq, rain/raintpl, react/http)
* Improve handling of Emojis (by mirabilos)
* Improve performances by using eager loading (for Chats, Posts and Contacts related widgets)
* Redirect the unauthenticated to the correct page when trying to access ?post